The zoo said on Twitter that the birds used in its “World of Birds” show and some of its smaller primates had been evacuated from the zoo property. Staff members also turned on sprinklers and hosed down the hillside.

Staff evacuated bird show animals & some smaller primates. We turned on sprinklers & began hosing the hillside. It doesn't appear the smoke is causing issues for animals but staff is monitoring conditions. Given ltd access to Griffith Park the Zoo will be closed to public today.

“It doesn’t appear the smoke is causing issues for animals but staff is monitoring conditions,” the tweet said, adding that the zoo would be closed to the public Friday.

Staff at the Los Angeles Zoo move birds into an indoor classroom to protect them from the smoke from a wildfire burning nearby in Griffith Park in Los Angeles, California, November 9, 2018. (Photo by Robyn Beck/AFP/Getty Images)

An LAFD spokesperson said the fire started in rugged terrain unreachable by fire engines. Instead, firefighters had to hike into the area on foot. One firefighter was hurt and transported to the hospital, although the spokesperson said their injury was not life-threatening.

At least one firefighting helicopter was assisting more than 120 firefighters fighting the flames on the ground. The 30-acre fire was 60 percent contained as of 2:00 p.m., and forward progress had been stopped.

Flames from a wildfire burn a portion of Griffith Park in Los Angeles, California, November 9, 2018. – Staff at the Los Angeles Zoo, which is located in the park are preparing animals to be evacuated. (Photo by Robyn Beck/AFP/Getty Images)

The California Highway Patrol closed offramps on the northbound 5 Freeway and eastbound and westbound 134 Freeway in the vicinity of the fire.

The Zoo will not be opening at 10 a.m. today. Freeway off ramps at Riverside, Crystal Springs, and Zoo Drive are closed. We will update you when possible. Animals and employees are safe; we are following the instruction of @LAFD.